NEW YORK--(BUSINESS WIRE)--Actinium Pharmaceuticals, Inc. (“Actinium” or the “Company”) (NYSE MKT:ATNM), a biopharmaceutical company developing innovative targeted payload immunotherapeutics for the treatment of advanced cancers, today announced that it intends to offer shares of its common stock in an underwritten public offering. The offering is subject to market and other conditions, and there can be no assurance as to whether or when the offering may be completed, or as to the actual size or terms of the offering. All of the shares are being offered by Actinium.